Walker Products Oxygen Sensor P/N:250-21051
Walker Products 250-22057 oxygen sensor for the 1990-1993 Toyota Celica 4-cylinder 1.6L reads the oxygen content of the exhaust gas for the engine's ECU. This upstream Walker Products oxygen sensor is a narrow-band, 2-wire, direct-fit unit with a flange.
A failing oxygen sensor can show up as rough running, higher fuel consumption or a lit malfunction indicator light. These signs alone do not prove the sensor is the problem, since a vacuum leak can cause similar symptoms. The sensor, wiring harness and connector can also be checked for physical damage.
This sensor is a direct fit for the 1990-1993 Toyota Celica 4-cylinder 1.6L.
Fit and size
Build and materials
One oxygen sensor. The 1990-1993 Toyota Celica 4-cylinder 1.6L takes one.
Does the Walker Products 250-22057 fit the 1990-1993 Toyota Celica 4-cylinder 1.6L?
Yes. Walker Products 250-22057 is a direct-fit upstream oxygen sensor for the 1990-1993 Toyota Celica 4-cylinder 1.6L, and that engine takes one.
Is this a narrow-band or a wideband oxygen sensor?
Walker Products 250-22057 is a narrow-band oxygen sensor with two wires and a flange mount.
What is the electrode coating on this oxygen sensor?
The electrodes use a gas-permeable platinum layer, and a coating guards their surfaces against contamination and erosion from combustion residue and particulates in the exhaust.
Will a bad upstream oxygen sensor turn on the check engine light?
Yes, it can. A failed sensor can light the malfunction indicator light, and it can also make the engine run poorly or raise fuel consumption.
Is this listing one oxygen sensor or a set?
This listing is one upstream oxygen sensor, sold on its own.
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WARNING: These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.